The flagship Championship of the Britcar family, the Britcar MSA British Endurance Championship caters for out and out GT cars from Le Mans levels of performance such as Porsche 911 RSR's and Ferrari GT2's down to GT4 cars such as Aston Martin GT4 and Ginetta G50's.

Races are a minimum of 2-3 hours in length with mandatory pitstops to allow for driver changes. The fuel is a controlled supply and the tyres are all Dunlop. The Championship covers the whole racing season with approximately one race every month with at least one overseas round.

The Championship visits famous and iconic racing circuits such as Silverstone and Donington, giving the teams and drivers chance to race at these historic venues. The Championship is usually the headline event at race meetings and has support from the Britcar family of races